I might be pursuaded that this plant is a form of D. cuneifolia, but it is certainly very different from the type. I am quite familiar with the D. cuneifolia in the collection of Alastair Culham at Reading University (an academic who's interests include Drosera systematics, as well as a keen CP collector, so hopefully his plants are correctly I.D.ed), these plants are much larger when mature, over an inch in diameter and certainly bigger than the flowers. The plants in my photos are very small, the flower in the photo was much bigger than the rosette from which it grew.
Vic
Vic